Strap for Aquis Date 39.5 Clean Ocean Limited Edition

The Oris Aquis 01 733 7732 4185-Set features a lug width of 20mm. This dimension is measured between the inner shoulders of the case where the strap is affixed. A digital calliper positioned internally on the case, perpendicular to the lugs, confirms this measurement with precision.

For this 39.50mm case in ceramic and stainless steel, alligator leather represents the supreme choice due to its natural geometric pattern that contrasts elegantly with the ceramic bezel. Vegetable-tanned calf offers an evolving patina over time, whilst NATO straps and FKM rubber remain excellent options for sports or recreational diving use.

Strap replacement requires a specific tool to remove the spring bars securing the strap to the lugs. Position the watch on a padded base, insert the tool into the side hole of the spring bar and press gently outward. Once the bar is removed, slide out the old strap and insert the new one by reversing the procedure.

Yes, the 20mm lug width is standard for many models and allows a wide selection of quality aftermarket straps. Milano Straps offers alligator, calf, NATO and rubber straps specifically sized for this lug width, crafted with certified materials and artisanal construction techniques.

A quality leather strap (alligator or calf) typically lasts 3-5 years with moderate daily use, shorter if frequently exposed to moisture or direct sunlight. Vegetable-tanned leather tends to age more elegantly, developing a desirable patina, whilst FKM rubber offers longer durability (5-8 years) with minimal maintenance.